FR944917A - Perfectionnement aux tubes radiogènes - Google Patents

Perfectionnement aux tubes radiogènes

Info

Publication number
FR944917A
FR944917A FR944917DA FR944917A FR 944917 A FR944917 A FR 944917A FR 944917D A FR944917D A FR 944917DA FR 944917 A FR944917 A FR 944917A
Authority
FR
France
Prior art keywords
improvement
ray tubes
tubes
ray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
French (fr)
Inventor
Maurice Poittevin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR944917A publication Critical patent/FR944917A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/066—Details of electron optical components, e.g. cathode cups
FR944917D 1946-05-09 1945-12-14 Perfectionnement aux tubes radiogènes Expired FR944917A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944917T 1946-05-09

Publications (1)

Publication Number Publication Date
FR944917A true FR944917A (fr) 1949-04-20

Family

ID=33548389

Family Applications (2)

Application Number Title Priority Date Filing Date
FR944917D Expired FR944917A (fr) 1946-05-09 1945-12-14 Perfectionnement aux tubes radiogènes
FR56195D Expired FR56195E (fr) 1946-05-09 1946-05-09 Perfectionnement aux tubes radiogènes

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR56195D Expired FR56195E (fr) 1946-05-09 1946-05-09 Perfectionnement aux tubes radiogènes

Country Status (7)

Country Link
US (1) US2597817A (en:Method)
BE (1) BE469098A (en:Method)
CH (1) CH261755A (en:Method)
FR (2) FR944917A (en:Method)
GB (2) GB651455A (en:Method)
NL (1) NL69809C (en:Method)
SE (1) SE122892C1 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083198A1 (en) * 1981-12-29 1983-07-06 Andrex Radiation Products A/S An X-ray generator device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103591A (en) * 1963-09-10 Radiographic systems and method
DE931304C (de) * 1952-05-24 1955-08-04 Siemens Reiniger Werke Ag Elektrische Entladungsroehre mit Elektrodenrichtglied
US2866113A (en) * 1952-10-07 1958-12-23 Cosslett Vernon Ellis Fine focus x-ray tubes
DE1027332B (de) * 1953-08-31 1958-04-03 Siemens Ag Metallglasverschmelzung fuer elektrische Entladungsgefaesse, wie Stromrichtergefaesse od. dgl.
DE1097041B (de) * 1956-09-19 1961-01-12 Emi Ltd Justiervorrichtung zur Zentrierung einer Kathode einer elektrischen Entladungsanordnung fuer hoechste Frequenzen
CH355225A (de) * 1958-01-22 1961-06-30 Foerderung Forschung Gmbh Verfahren und Einrichtung zum Kontrollieren und Korrigieren der Lage des durch einen Kathodenstrahl erzeugten Brennflecks auf der Antikathode einer Röntgenröhre
GB872579A (en) * 1958-10-15 1961-07-12 Ass Elect Ind Improvements relating to electron gun assemblies
NL126562C (en:Method) * 1959-06-11
US3179832A (en) * 1960-01-12 1965-04-20 Field Emission Corp Temperature enhanced field emission x-ray tube
US3303372A (en) * 1964-08-20 1967-02-07 Dunlee Corp X-ray generator with a knife edged cold cathode emitter
DE3151229A1 (de) * 1981-12-23 1983-06-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und vorrichtung zur optimierung der emission einer roentgenroehre
US4698835A (en) * 1984-05-31 1987-10-06 Kabushiki Kaisha Toshiba X-ray tube apparatus
US4868842A (en) * 1987-03-19 1989-09-19 Siemens Medical Systems, Inc. Cathode cup improvement
US6356619B1 (en) * 2000-06-02 2002-03-12 General Electric Company Varying x-ray tube focal spot dimensions to normalize impact temperature
CN107112179B (zh) * 2014-12-25 2018-11-09 株式会社明电舍 场发射装置以及改质处理方法
DE102015220754B3 (de) * 2015-10-23 2017-02-09 Siemens Healthcare Gmbh Verfahren und Messeinrichtung zur Ermittlung des Elektrodenabstands von Röntgenröhren
EP3696845A1 (en) * 2019-02-12 2020-08-19 Malvern Panalytical B.V. X-ray tube and x-ray analysis system
CN111564349B (zh) * 2020-06-16 2025-05-02 昆山国力大功率器件工业技术研究院有限公司 可调节的冷阴极x射线管

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310714A (en) * 1919-07-22 X-ray tube
US793112A (en) * 1903-10-06 1905-06-27 Rome V Wagner Vacuum-tube.
US1174044A (en) * 1915-05-05 1916-03-07 Elof Benson X-ray apparatus.
DE390479C (de) * 1919-12-12 1924-02-19 Julius Edgar Lilienfeld Dr Hochvakuumroehre, insbesondere Roentgenroehre, Ventilroehre, Senderoehre oder Verstaerkungsroehre
DE586817C (de) * 1930-12-11 1933-10-26 Radiologie Akt Ges Verfahren zur Brennfleckregelung fuer Roentgenroehren durch Veraenderung der emittierenden Gluehkathodenflaeche
GB419727A (en) * 1932-04-22 1934-11-19 Loewe Opta Gmbh A braun tube for oscillographic and television purposes
US2130020A (en) * 1934-03-13 1938-09-13 Harry B Mceuen Cathode filament control for x-ray tubes
US2157718A (en) * 1935-02-26 1939-05-09 Mutscheller Arthur X-ray tube
FR818476A (fr) * 1936-06-03 1937-09-27 Radiologie Cie Gle Perfectionnements aux ampoules radiogènes
GB495707A (en) * 1937-04-17 1938-11-17 Frederick Hermes Nicoll Improvements in or relating to focussing systems for use in electric discharge tubes
NL68166C (en:Method) * 1939-12-02
BE475842A (en:Method) * 1942-04-25
US2350269A (en) * 1942-06-15 1944-05-30 Gen Electric X Ray Corp X-ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083198A1 (en) * 1981-12-29 1983-07-06 Andrex Radiation Products A/S An X-ray generator device
US4563769A (en) * 1981-12-29 1986-01-07 Andrex Radiation Products A/S X-Ray generator device

Also Published As

Publication number Publication date
GB651507A (en) 1951-04-04
FR56195E (fr) 1952-09-18
NL69809C (en:Method)
CH261755A (fr) 1949-05-31
SE122892C1 (en:Method) 1948-10-05
GB651455A (en) 1951-04-04
BE469098A (en:Method)
US2597817A (en) 1952-05-20

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